A recent study published in JAMA Internal Medicine revealed that nearly all adults over 40 have shoulder abnormalities detectable on MRI scans, even if they experience no shoulder problems. The finding, which examined the rotator cuffs of participants, highlights the prevalence of these abnormalities and raises questions about their clinical significance.
According to Hacker News, the study found that 99% of adults over 40 had at least one abnormality in their rotator cuff on MRI scans. The rotator cuff, a group of muscles and tendons in the shoulder joint, is often associated with pain and other symptoms. However, the study's authors noted that the vast majority of participants with these abnormalities did not report any shoulder issues.
In other news, the technology race between the United States and China continues to accelerate, despite eased trade tensions, as reported by Time. World leaders met in New Delhi for the India AI Impact Summit to discuss the complex stakes of AI leadership. The question of whether the U.S. or China will "win" the AI race was debated, with discussions focusing on the meaning of AI leadership, potential tradeoffs, and the complexities of global supply chains.
Meanwhile, in the world of sports, Mikaela Shiffrin's Olympic win brought emotional reflections on her late father. Time reported that when Shiffrin last won an Olympic gold medal eight years ago, her father, Jeff, was overjoyed. "This is a validation for all her effort," he said.
In a different realm, a professional puzzle maker, Jodi Jill, finds solace in jigsaw puzzles to manage stress, especially during stressful situations like flying. As reported by Time, Jill uses puzzles to focus on what she can control, finding "friends in puzzles" during a difficult childhood.
Finally, in the realm of technology, a team at Microsoft is working on a revolutionary data storage system that could last for millennia, according to Nature News. The article also covered other science news, including research on parasitic wasps and mRNA vaccines.
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